Method and device for measuring heat conductivity coefficient of ocean sediment
A marine sediment and thermal conductivity technology, applied in the field of marine engineering equipment, can solve the problems of measuring water-bearing sediment errors, large volume, high heating power, etc., and achieve the effect of easy integration and operation, accurate measurement results, and small device volume
Pending Publication Date: 2022-03-18
ZHEJIANG UNIV
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[0003] The thermal conductivity of sediment is a basic parameter for calculating seabed heat flow, and it is an important part of studying seabed heat flow. The traditional thermal conductivity measuring instrument is bulky and not easy to integrate, and the heating power is large during measurement, which is easy to cause water migration. It is easy to cause large errors when depositing sediments, and it is difficult to realize the convenient and accurate measurement of the thermal conductivity of seabed sediments
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[0041] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.
[0042] The purpose of the present invention is to provide a method and device for measuring thermal conductivity of marine sediments, which improves the convenience of thermal conductivity measurement.
[0043] In order to make the above objects, features and advantages of the present invention more comprehensible, the present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments...
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The invention relates to a method and a device for measuring a heat conductivity coefficient of a marine sediment. The method comprises the following steps: emitting heat to the marine sediment to be measured through a heat source probe; a first temperature signal is obtained through the first temperature sensing probe, and a second temperature signal is obtained through the second temperature sensing probe; the distance between the first temperature sensing probe and the heat source probe is not equal to the distance between the second temperature sensing probe and the heat source probe. And based on a Newton-Raphson algorithm, determining the heat conductivity coefficient of the to-be-measured ocean sediment according to the first temperature signal and the second temperature signal. The convenience of heat conductivity coefficient measurement is improved.
Description
technical field [0001] The invention relates to the technical field of marine engineering equipment, in particular to a method and device for measuring thermal conductivity of marine sediments. Background technique [0002] Submarine heat flow is the thermal energy continuously dissipated from the interior of the earth to the seafloor through convection or conduction, and is the driving force of multi-scale geological processes in the oceanic crust. Submarine heat flow data is of great significance to the study of plate tectonic dynamics, the thermal state of the earth, oceanic lithosphere and ocean basin evolution, continental margin formation process, plate subduction, seabed resources, etc. The formation of new resources, such as [0003] The thermal conductivity of sediment is a basic parameter for calculating seabed heat flow, and it is an important part of studying seabed heat flow. The traditional thermal conductivity measuring instrument is bulky and not easy to int...
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IPC IPC(8): G01N25/20
CPCG01N25/20
Inventor 陈家旺张春月高巧玲南立文李浩南郭进何开
Owner ZHEJIANG UNIV